Telephone desk set.



No. 758,031. PATNTBD APR. 19, 1904. H. P. CLAUSEN. TELEPHONE DESK SET.

APPLIOATION FILED MAY 26, 1902. H0 MODEL. 3 SHEETS-SHEET 1.

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Wfl@ l E' PATENTE!) APR. 19, l19.04.

H. P. GLAUSEN. TELEPHONE DESK SET. APPLIoATIoN FILED un ze, 1902.

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" PATENTED APR. 19, 1904.

H. I. CLAUSEN. TELEPHONE DESK SET. D

APPLICATION FILED MAY 26, 1902.

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lUNITED STATES Patented April 19,1904.

PATENT OFFICE.

HENRY P. CLAUSEN, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO AMERICAN ELECTRIC TELEPHONE COMPANY, OF CHICAGO, ILLINOIS, A COR- PORATION OF ILLINOIS.

TELEPHONE DESK SET SPECIFICATION forming part of Letters Patent No. 758,031, dated April 19, 1904.

Application filed May 26, 1902. Serial No. 103,946. (No model.) i

To all whom it may concern:

Be it known that I, HENRY P. CLAUSEN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Telephone Desk Sets, of which the following is a specification.

My invention relates to what are commonly known as telephone desk sets. A device of this character usually consists of a transmitter and a receiver suitably supported and arranged upon a portable or movable support.

The particular form of telephone desk set to which my invention relates comprises a hollow standard adapted to inclose certain -electrical connections and provided with a bottom portion, said bottom portion being preferably in the nature of a base adapted to rest upon a desk or table, the supporting structure thus formed having a transmitter and a receiver fork or lever mounted upon its upper portion and the said standard being of sufficient height to support the transmitter and receiver in suitably-elevated positions.

The objects of my invention are to provide a simple, compact, and eiiicient construction;

to provide an improved construction in which the mounting for the contact-pieces, bindingposts, and connections can be readily removed from a tubular standard; to provide a telephone desk set so constructed that the different parts or members thereof may be held together by means of a single fastening device, such as a screw or bolt; to provide a simple and effective arrangement for limiting the swingof the transmitter; to generally simplify and reduce the number of parts; to re-y duce the cost of manufacture, and to provide certain details and features of improvement tending to increase the general efficiency of a device of this character. 11

To the foregoing and other useful end`s,thet desk set is preferably in the form of a standard provided with a suitable base and having a transmitter suitably mounted at its upper end. The said standard is preferably tubular y tions and to which is also pivoted the fork or lever which supports the receiver. lar standard has its lower end Vadapted to engage a socket in the base, and the upper end 4of said standard is adapted to engage the head or portion upon which the transmitter is mounted. This head is preferably secured to the upper end of the mounting, While the lower end of the latter is adapted to be engaged by the screw or like fastening device inserted through the bottom of the base. In this way the desk set comprises' practically but three members, and withy this arrangementthese three parts or members are all held or secured firmly together by a single screw which extends `upwardly through the base. With this construction and arrangement, ythe parts or members of the desk set can be readily taken apart, it being obvious that a loosening or removal of the screw from the bottom of the device will permit the base, standard, and head to be readily separated from each other. Furthermore,` by thus simplifyis greatly reduced. The nature and advantages of my invention will, however, hereinafter more fully appear.

In the accompanying drawings, Figure 1 is a vertical section of a telephone desk set constructed in accordance with my invention, the transmitter and adjacent portion of the standard being in elevation. Fig. 2 is alsoa vertical section showing the transmitter and upper portion of thestandard in elevation, the section in this case, however, being taken on a line at right angles to that of Fig. 1. Fig. 3 Visa vertical section'through the' upper portion' of the standard, showing the manner in which the receiver fork or lever is'mounted upon the bar or member herein termed the mounting Fig. llisa view of the bottom of the base with thebottom plate removed. Fig. '5 is a horizontal section'on line 5 5 of Fig. 1. Figs. 6and7 are enlarged detail views illustrating the two positionsof the receiver fork or lever and illustrating the operation of the switch. Fig. 8 is an enlarged detail of the pivotal joint or connection between the trans- The tubu-` Y ing the construction the cost of manufacture mounting are shown invertical section.

mitterand the head. Fig. 9 is'a horizontal section on line 9 9 of Fig. 8. Fig. 10'shows the mounting removed from the tubular standard, it being observed that said mounting is rigid with the head to which the transmitter is secured and it being also observed that in this View the upper and lower ends of said Fig. 11 is a vertical section of the tubular standard. Fig. 12 is a vertical section of the base upon which the tubular standard is mounted. Fig. 13 shows the screw which holds or binds together the base, standard, and mounting. Fig. 14 is a bottom view of the lower end of the mounting. Fig. 15 is a bottom view of the head upon which the transmitter is mounted. Fig. 16 is a section on line 16 16 in Fig. 10 looking in the direction indicated by the arrows. Figs. 17 and 18 are sectional views, respectively, of the bottom plate and rubber ring. i

As thus illustrated the telephone desk set comprises a hollow or tubular standard A, a base or pedestal B, and a cap or head C. The lower end of said tubular standard is adapted toengage a seat or socket b in the base B. Said base is also preferably formed with a recess b, and, if desired, the base can be provided with a bottom plate 52. It will also be observed that said base is provided with a tube which provides a lateral opening 3. The said recess Zi', together with the opening b3 and recess b4, are designed to accommodate the telephone wires or connections which lead to the various binding-posts inclosed within the said standard A.

The core or mounting D, which carries the binding-posts 1, 2, 3, 4, 5, and 6, is preferably in the form of a iat or iiattened. bar eX- tending substantially from the top to the boti tom of the tubular standard A. Preferably the cap C is secured to the upper end of said mounting, and the lower end of the latter is provided with a round or disk-like portion d. This portion d is preferably provided with a threaded socket d', adapted to be engaged by the threaded upper end of the clamping-screw E. This screw, it will be observed, extends upwardly through the bottom of the base B and, as stated, has its upper end screwed into the threaded -socket in the lower end of the mounting D. The pin e is preferably inserted through said screw, it being observed that said pin is inserted at a point above the lower or bottom wall of the recess b4. This pin serves to prevent end movement on the part of the clamping-screw E,.and thereby permits the mounting D to be removed from the standard A without disengaging the screw E from the base B. 1n other words, the screw E with this arrangement maintains itself in e 'position to engage the lower end of the said mounting and does not separate from the base when the members of the telephone set are taken apart. The cap or head C is adapted gether. A tightening of this screw operates to draw the head secured to the mounting down in place upon the top of the standard and also operates to draw the tubular standard A down into place in the socket b. In order to insure the proper relative positions ofv the three members, the base is provided with a pin b5, inserted in such manner as to engage a notch a in the bottom of the stand-A ard, and also so as to engage a similar notch Z2 in the 'periphery of the disk-like portion al. In assembling the proper relative positions can be obtained by relatively rotating the three members to an extent to bring the notches ct and d2 into engagement with' the said pin b5.

As stated, the mounting D is designed and adapted to support the binding-posts, contactpieces, &c., for the various electrical connections. This mounting is also adapted to support the fork or lever which supports the receiver and which operates the switch or means for throwing the bell in and out of circuit. As illustrated, this fork or lever F is preferably in the form of a bell-crank, it being provided with a downwardly-extending arm f. This lever is pivoted at f and preferably ar# ranged at the upper end of the mounting D. As a simple and effective arrangement the pivot for said fork orv lever can consist of a screw f2, inserted through the lever and screwed into the mounting D. A flat spring fBis arranged to hold the fork or lever normally in a raised or elevated position. Said spring is preferably secured at its lower end to the mounting D and has its upperl end adapted to engage a notch in the lower end of the lever-arm f. A stop f4 is provided for limiting the downward swing of the fork or lever F. Arranged at either side of said spring are the contact-pieces G and H. -These contact-pieces are preferably in the form of flat springs provided at their upper ends with insulating projections g and it. These in- IOO ilO

sulating projections are adapted to engage opposite sides of the lever-arm f. The end of said lever-arm is provided at its opposite sides with'small projections f5 and f6. When the lever is in its elevated or raised position', as shown in Figs. 1 and 6, the contact-piece G is in contact with the projection f5. When the lever is depressed, as shown in Fig. 7, the contact-piece H is brought into contact with the projection f, and this downward movement of the fork or lever also operates to disengage the projection f5 from the contact-piece G. The spring f3 is, as stated, adapted to hold the fork or lever F normally raised; but it will be readily understood that EMausi this spring is of such strength as to yield and permit the weight of the receiver to depress the lever and move it into the position shown in Fig. 7. The contact-pieces G and H, together with the fork or lever F, constitute a switch for throwing the bell into and out of circuit. VYlien the lever is down, as shown in Fig. 7, the contact of the projection f6 with the contact-piece H operates to throw the bell into circuit. When the receiver is removed and the lever allowed to rise, the bell is thrown out of circuit in the usual and Well-known manner. The said fork or lever is arranged to swing in a notch or opening a in the upper end of the tubular standard A. With further reference to the lower .end portion of the mounting D it willbe observed that the round or disk-like portion d is provided with a peripheral groove Z3 and also with a peripheral notch or recess di. Said notch or recess d* is designed to afford an opening through which to lead the telephone-wires, which, it

`will be understood, are several in number,

and these wires are preferably secured in place by a cord or wire wound around the peripheral groove d3.

rlheI cap C, as stated, is secured to the'upper end of the mounting D. This Acap or head C` is adapted to support-the transmitter I, which, it will be understood, can beof any suitable knownor approved form. Preferably, however, said transmitter has its back provided with a tongue c', adapted to fit between the cheeks or ears c, provided at the top of thecap or head C. The screw J is arranged to extend through said tongue 4and cheeks and is provided with a suitable nut j.v

By tightening .saidv nut ,the cheeks o r ,ears c can be `compressed to an extent to squeeze they tongue c', thereby creating sufficient pressure and friction to hold the swinging transmitter In order to limit the` in any desired position.

swing 'of said transmitter, the tongue 71 is .amount of vertical swing, the recesses c and preferably provided with lateral projections or enlargements ?l', adapted to work or play-y. 1n recesses c', formed onfthe inner surfaces of,

the cheeks or ears c. Byreferring to Fig. 8 it will be seen that these recesses'c are some-l what larger than the lateral projections or enlargements c" on the-tonguez' and that for this reason the transmitteris capable of a limited the projections c" constituting a stop arrangement for limiting such swing. It will be un-l derstood that the extent to which the transmitter is permitted to swing either up or down depends upon the relative formation of said recesses and projections. Y y

IVith further reference to the spring f3 and the contact-pieces Gr and H, constituting the switch device for throwing the bell in and out of circuit, it will be observed that the same are effectively and advantageously mounted in an insulating-block K, secured to the side of the mountingD by screws 71:. With this arrangement the spring f3 and flat contactpieces G and H are held firmly in place and in position to be engaged by the lever-arm f. It will also be seen that the binding-posts 2, and 3 are preferably secured to the lower projecting ends of the contact-pieces Gr and H.

With reference to the wiring or electrical connection the cap or head C can be provided with an opening or passage c2, communicating with a similar' opening or passage 2, ex-

tending through the tongue c' and thence through the back of the transmitter. These openings ory passages for the Wire are shown in dotted lines in Fig. 8. With further reference to said electrical connections the circuits are shown diagramatically in Fig.' l, and in this view the receiver L is shown in dotted mes.

In order that the set may not scratch or mar the desk, the plate Z22 can be employed for clamping a rubber ring m in place lupon .the bottom of the base B. The said ring, as shown, is preferably wedge-shaped'in crosssection, and the edge of the plate is correspondingly beveled.

From the foregoing it will now be seen that I provide a telephone desky set which is simple, compact, and eicient in construction and which is so constructed as to facilitate the assembling and taking apart of the different portions of the device. It will also be seen that the arrangement and construction tends to reduce the cost of manufacture.

With the provision of the screw E vthe mounting D is adapted to act or serve asa tierod forl binding the base and standard and other parts tightly together. In fact, the said screw and mounting may be said to combine to form a sort of tie-rod or member upon whicha constant pull or tensile strain ,is exerted for the purpose of holding the parts together.

What I claim as my invention is-` 1. A telephone desk set comprising a base, a

ftransmittea, amounting, a hollow standard mounted upon said base and inclosing said4 IOO mounting, and a single clamping-screw insertj ed upwardly through said base and engaging the lower end of said mounting, said mounting thereby serving as a tie-rod to bind the differentparts together. A

2, Atelephone desk set comprising a base, a mounting in closed by a hollow or tubular` standard, a transmitter and receiver forkA or lever carried by said mounting, switch-springs inclosed by the standard and mounted on said mounting and operated by said fork or lever, and a fastening device applied to the base and the lower end of said mounting, the said mounting thereby serving as a tie-rod to bind the different parts together.

3. A telephone desk set comprising a base, a hollow standard, extending upwardly from said base, a mounting inclosed by said hollow standard, a transmitter and receiver forkor,

lever carried' by said mounting, and a clampthe shoulder provided by said head.

4. A telephone desk set'comprising a base, a hollow standard mounted upon said base, a mounting iny the form of a bar extending vertically within said standard, the upper end of said bar being provided with a head providing a shoulder, a transmitter, a receiver fork or lever carried by said mounting, switchsprings mounted on said mounting and inclosed within the standard and operated by said receiver fork or lever, suitable bindingposts also carried by said mounting, and a fasten ing device applied to the base and the lower end of said mounting, said fastening device constituting the sole means of` clamping the said standard between the said head and base.

' 5. A telephone desk set comprising a suitable base, a standard mounted upon said base, a mounting, a transmitter, a receiver fork or lever carried by said mounting, switch-springs mounted upon said mounting and operated by said lever, suitable binding-posts=carried by said mounting, the upper end of saidmounting. being provided with a head, and a single clamping-screw applied to the said base and the lower end of said mounting, said screw serving to clamp said standard between said base and head.

6. A telephone desk set comprising a base recessed to accommodate the telephone wires or cords, said base being also provided on its top with a socket, a tubular stand ard mounted in said socket, a mounting inclosed by said tubular standard and having its lower end provided with a threaded opening, and a clamping-screw extending upwardly through the bottom of the base and engaging said threaded opening.

7 A telephone desk set comprising a base, a tubular standard mounted upon said base, a mounting in the form of a bar inclosed within said tubular standard, the lower end of said `bar being provided with a round or disk-like portion itting the bore of said tubular standard and provided with a threaded socket, said mounting being provided at its upper end with a head, a transmitter pivoted to the upper end ot' said head, a receiver forkv or lever pivoted to said mounting at a point immediately' below said head, binding-posts and suitable contact-pieces secured to the said mounting, and a clamping-screw extending through the bottom of said base and engaging the said threaded opening in said round or disk-like portion at the lower end of said mounting, said screw serving to clamp said tubular standard between said base and head.

8. A telephone desk set comprising a suitable base, a tubular standard mounted thereon, a mounting inclosed by said standard and provided at its upper portion with a shoulder, a transmitter, a receiver fork or lever carried by said mounting, said receiver-fork being provided with a downwardly-extending arm, a fiat spring secured to said mounting and having'its upper end adapted to engage the lower end of said downwardly-extending lever-arm, contact-pieces arranged to engage the opposite sides of said downwardly extending leverarm, suitable binding-posts secured to said mounting, and a fastening device applied to said base, and constituting the soie means of clamping said standard between said base and the shoulder on the upper portion of said mounting. 1

9. A telephone desk set comprising a suitable base, a tubular standard, a strip or bar extending vertically in said standard, a transmitter and a hook-switch mounted upon the upper portion of said strip or bar, and a single fastening device applied to the lower end of said stripor bar, the said strip or bar thereby serving as a tie-rod to bind the dierent parts together.

10. A telephone desk set comprising a suitable base provided with a tubular standard, a

mounting inclosed by said tubular standard, a switching device carried" by said mounting and adapted to support a telephone-receiver, a transmitter also carried by said mounting, and a sin gle fastening-screw inserted upwardly through the base and engaging the lower end of said mounting.

11. A telephone desk set, comprising a base provided with a hollow standard, a removable mounting inclosed by said standard, switchsprings carried by said mounting, a switchhook carried by said mounting and adapted to operate said springs, said switch-hook being adapted to support a telephone-receiver, a transmitter carried by said mounting, and a single screw-threaded member constituting the sole means for maintaining the said mounting in its proper position relative to the base and standard.

l2. In a telephone desk set, the combination of a base, a tubular standard mounted thereon, a mounting inclosedby said tubular standard and provided at its upper portion with a shoulder, a transmitter, a receiver fork or lever carried by said mounting, a clampingscrew extending upwardly th-rough said base anl engaging a threaded opening in the lower en through said clamping-screw and adapted to prevent end movement on the part of the latter relatively to said base, said screw serving to clamp the said standard between the said base and the shoulder on the upper end of said mounting.

13. Inatelephone deskv set, the combination of a plurality of members forming a structure lOO IIO

of said mounting, and a pin extending ture, a transmitter and receiver hook mounted thereon, a base upon which the structure is mounted, a rubber ring wedge-shaped in crosssection, and a plate having a beveled edge Jfor clamping the ring to thebottom of said base; and means for holding the different parts together, said means including a mounting and a screw, said mounting, when the screw is tightened, serving as a tie-rod to bind the parts together.

16. Atelephone desk set, comprisingabase, a hollow standard having its lower end removably mounted on said base, a mounting in said standard, a transmitter and a hook-switch carried by said mounting, and a screw for holding the base, standard and mounting iirmly together, said screw extending upwardly through the base and engaging the lower end portion of the mounting, wherebythe said screw is readily accessible from below.

17. A telephone desk set comprising a suitable base, a tubular standard having its lower end removably mounted on said base, a strip or bar extending vertically in said standard, a transmitter and a hook-switch mounted upon the upper portion or' said strip or bar, and a single screw-thread ed fastening device applied to the lower end of said strip cr bar, the said strip or bar thereby serving as a tie-rod to bind the dilerent parts together.

18., A telephone desk set provided with a hollow base, and provided also with a remov` able bottom plate having a beveled edge, together with a cushioning-ring encircling said plate and held in place by the beveled edge of the latter.

Signed by me at Chicago, Cook county, Illinois, this'22d day of May, 1902.

HENRY P. CLAUSEN.

Witnesses:

ARTHUR F. DURAND, HARRY P. BAUMGARTNER. 

